The double-edged sword of dominance

A study of chimpanzees has revealed that dominant animals with higher testosterone levels tend to suffer from an increased burden of parasites. Researchers writing in BioMed Central's open access journal BioPsychoSocial Medicine ...

Ugly Betty forced to aim for Average Joe

Less-pretty female house sparrows tend to lower their aim when selecting a mate. Addressing the lack of studies on condition-dependency of female mate choice, researchers writing in the open access journal BMC Evolutionary ...

Being a dominant breeder is costly for female banded mongooses

There's a subtle hierarchy among the women in banded mongoose societies: only older females get to breed, while younger ones have to wait their turn. If a young female mongoose decides to buck this trend, she risks the wrath ...

European Commission: Google decision near

Europe's top competition official says his agency is close to a decision in its three-year investigation into whether Google Inc. has abused its dominant position in Internet searches to unfairly thwart competition.

Fish camouflage sends mixed messages to aggro males

Colour-changing fish have only one skin, but they use it to communicate social status, attract mates, avoid predators and more. So what happens when those functions collide?

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